You might not immediately recognize James Elkington’s name but chances are you’ve heard his playing on songs by Jeff Tweedy, Wooden Wand, Richard Thompson, Steve Gunn, Michael Chapman, Joan Shelley, Nathan Salsburg or Tortoise. He’s a kind of sidmean’s sideman, a songwriter’s secret weapon who adds texture and depth to any song he graces. He’s steeped in the traditions of Basho, Fahey and Ayers with a touch that rivals his compatriot Steve Gunn in accessibility and nuance. As usual Hidden Gems explores the albums that inspire reverence in artists, the ones that they feel haven’t received due diligence. Elkington goes deep on a solo outing from the Incredible String Band’s Robin Williamson, and makes a case for a psych-folk classic lost to time.